I feel like a plucked chicken with it completely shaved. I honestly prefer the way I look and feel with it just trimmed. Usually get OWO and ball sucking, and even a bit of attention towards my gouch and crack, so really don't see the need. If I was massively bothered about getting rimmed I'd shave my crack, but I'm not, so I don't.
I've gone down on plenty of hairy muffs and actually really enjoy it. I don't think shaved automatically equals clean or that hairy automatically equals dirty. Clean is clean, and if a girl hasn't washed herself properly recently or made sure to do so on a regular basis, then she isn't clean, hairy or not, and it's usually obvious to see, and the same applies to men IMO.